Simple voting system developed with PHP and complete administrator function module
We have previously decomposed the functions of each module on the administrator page
Modify the title
Modify and delete the selected item
Add new project
In this section we will integrate all functions and create an admin.php to fully display all functions.
<?php
ob_start(); //打开缓冲区
session_start();
header("Content-type:text/html;charset=utf-8");
$link = mysqli_connect('localhost','username','password','test');
mysqli_set_charset($link, "utf8");
if (!$link) {
die("连接失败:".mysqli_connect_error());
}
?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>PHP+mysql开发的简单投票系统</title>
<style type="text/css">
/*全局样式*/
body { font-family: "宋体"; font-size: 12pt; color: #333333; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;background-color: #d4d4d4;}
table { font-family: "宋体"; font-size: 9pt; line-height: 20px; color: #333333}
/*全局样式结束*/
</style>
<script language="javascript">
function selectAll()
{
node=window.document.frm.itm;
for(i=0;i<node.length;i++)
{
node[i].checked=true;
}
}
function cancelAll()
{
node=frm.itm;
for(i=0;i<node.length;i++)
{
node[i].checked=false;
}
}
function del()
{
node=frm.itm;
id="";
for(i=0;i<node.length;i++)
{
if(node[i].checked)
{
if(id=="")
{
id=node[i].value
}
else
{
id=id+","+node[i].value
}
}
}
if(id=="")
{
alert("您没有选择删除项");
}
else
{
location.href="?type=del&id="+id
}
}
</script>
</head>
<body>
<?php
if(isset($_GET['tj']) == 'out'){
session_destroy();//删除当前用户对应的session文件以及释放session
echo "<script language=javascript>alert('退出成功！');window.location='index.php'</script>";
}
?>
<?php
if(isset($_POST['Submit10'])){
if($_POST['pwd']=='admin'){
$_SESSION['pwd']=2;
echo "<script language=javascript>alert('登陆成功！');window.location='admin.php'</script>";
}else{
echo "<script language=javascript>alert('登陆失败,请检查您的密码！');window.location='admin.php'</script>";
}
}
?>
<?php if($_SESSION['pwd']<>2){ ?>
<form action="" method="post">
<table width="365" border="0" align="center" cellpadding="5" cellspacing="1" bgcolor="#C2C2C2">
<tr>
<td height="30" align="right" bgcolor="#FFFFFF"><label>输入密码：</label></td>
<td align="left" bgcolor="#FFFFFF"><input name="pwd" type="text" id="pwd" /></td>
</tr>
<tr>
<td height="30" colspan="2" align="center" bgcolor="#FFFFFF"><label>
<input name="Submit10" type="submit" id="Submit10" value="登陆" />
</label>
<label>
<input type="reset" name="Submit5" value="重置" />
</label></td>
</tr>
<tr>
<td height="30" colspan="2" align="center" bgcolor="#FFFFFF">
软件版本：<script type="text/javascript" src="http://www.04ie.com/net/phpvote1_1.js"></script></td>
</tr>
</table>
</form>
<?php }else{ ?>
<?php
if(isset($_POST["Submit"]))
{
$title=$_POST["title"];
$sql="update votetitle set votetitle='$title'";
mysqli_query($link,$sql);
?>
<script language="javascript">
alert("修改成功");
</script>
<?php
}
if(isset($_POST["Submit2"]))
{
$newitem=$_POST["newitem"];
$sql="insert into vote (titleid,item,count) values (1,'$newitem',1)";
mysqli_query($link,$sql);
}
?>
<form id="frm" name="frm" method="post" action="" style="margin-bottom:3px;">
<table width="365" border="0" align="center" cellpadding="5" cellspacing="1" bgcolor="#C2C2C2">
<tr>
<td colspan="4" bgcolor="#FFFFFF"><label>
<?php
$sql="select * from votetitle";
$rs=mysqli_query($link,$sql);
$rows=mysqli_fetch_assoc($rs);
?>
<input name="title" type="text" id="title" size="35" value="<?php echo $rows["votetitle"]?>" />
</label></td>
<td width="68" align="center" bgcolor="#FFFFFF"><label>
<input type="submit" name="Submit" value="修改标题" />
</label></td>
</tr>
<tr>
<th width="30" bgcolor="#FFFFFF">编号</th>
<th width="45" bgcolor="#FFFFFF">项目</th>
<th width="52" bgcolor="#FFFFFF">票数</th>
<th width="50" align="center" bgcolor="#FFFFFF">修改</th>
<th align="center" bgcolor="#FFFFFF">删除</th>
</tr>
<?php
$sql="select * from vote order by count desc";
$rs=mysqli_query($link,$sql);
while($rows=mysqli_fetch_assoc($rs))
{
?>
<tr>
<td align="center" bgcolor="#FFFFFF"><input type="checkbox" name="itm" value="<?php echo $rows["id"]?>" /><?php echo $rows["id"]?></td>
<td align="center" bgcolor="#FFFFFF"><?php echo $rows["item"]?></td>
<td align="center" bgcolor="#FFFFFF"><?php echo $rows["count"]?></td>
<td align="center" bgcolor="#FFFFFF"><input type="button" value="修改" onclick="location.href='?type=modify&id=<?php echo $rows["id"]?>'" /></td>
<td align="center" bgcolor="#FFFFFF"><input type="button" value="删除" onclick="location.href='?type=del&id=<?php echo $rows["id"]?>'" /></td>
</tr>
<?php
}
?>
<tr>
<td colspan="5" align="center" bgcolor="#FFFFFF">
<input type="button" value="选择全部" onclick="selectAll()" />
<input type="button" value="取消全部" onclick="cancelAll()" />
<input type="button" value="删除所选" onclick="del()" /> </td>
</tr>
<tr>
<td colspan="3" bgcolor="#FFFFFF"><label>
<input name="newitem" type="text" id="newitem" />
</label></td>
<td colspan="2" bgcolor="#FFFFFF"><label>
<input type="submit" name="Submit2" value="添加新项" />
</label>
<a href="?tj=out">退出管理</a></td>
</tr>
</table>
</form>
<?php
$type = isset($_GET["type"])?$_GET["type"]:"";
if($type =="modify"){
$id=$_GET["id"];
if(isset($_POST["Submit3"]))
{
$item=$_POST["itm"];
$count=$_POST["count"];
$sql="update vote set item='$item',count=$count where id=$id";
mysqli_query($link,$sql);
echo "<script language=javascript>alert('修改成功！');window.location='admin.php'</script>";
}
$sql="select * from vote where id=$id";
$rs=mysqli_query($link,$sql);
$rows=mysqli_fetch_assoc($rs);
?>
<form id="form1" name="form1" method="post" action="" style="margin-top:2px;">
<table width="365" border="0" align="center" cellpadding="5" cellspacing="1" bgcolor="#C2C2C2">
<tr>
<th colspan="2" bgcolor="#FFFFFF">修改投票项目</th>
</tr>
<tr>
<td align="center" bgcolor="#FFFFFF">名称:</td>
<td bgcolor="#FFFFFF"><label>
<input name="itm" type="text" id="itm" value="<?php echo $rows["item"]?>" />
</label></td>
</tr>
<tr>
<td align="center" bgcolor="#FFFFFF">票数：</td>
<td bgcolor="#FFFFFF"><label>
<input name="count" type="text" id="count" value="<?php echo $rows["count"]?>" />
</label></td>
</tr>
<tr>
<td colspan="2" align="center" bgcolor="#FFFFFF"><label>
<input type="submit" name="Submit3" value="修改" />
<input type="reset" name="Submit" value="重置" />
</label></td>
</tr>
</table>
</form>
<?php
}
?>
<?php
$type = isset($_GET["type"])?$_GET["type"]:"";
if($type =="del"){
$id=$_GET["id"];
$sql="delete from vote where id in ($id)";
mysqli_query($link,$sql);
echo "<script language=javascript>alert('删除成功！');window.location='admin.php'</script>";
}
?>
<?php } ?>
</body>
</html>
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